Székely, D., Cogălniceanu, D., Székely, P., & Denoël, M. (September 2020). Adult—Juvenile interactions and temporal niche partitioning between life-stages in a tropical amphibian. PLoS ONE, 15 (9), 0238949. doi:10.1371/journal.pone.0238949
Divergence in ecological niche offers organisms the opportunity of exploiting different food and habitat resources, scaling down competition and predation both among species, and within different a...
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Székely, D., Cogalniceanu, D., Székely, P., Armijos-Ojeda, D., Espinosa-Mogrovejo, V., & Denoël, M. (April 2020). How to recover from a bad start: size at metamorphosis affects growth and survival in a tropical amphibian. BMC Ecology, 20, 24. doi:10.1186/s12898-020-00291-w
Background: In species with complex life cycles, size at metamorphosis is a key life-history trait which reflects the complex interactions between costs and benefits of life in the aquatic and terr...
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Bardier, C., Székely, D., Augusto-Alves, G., Matínez-Latorraca, N., Schmidt, B. R., & Cruickshank, S. S. (2020). Performance of visual vs. software-assisted photo-identification in mark-recapture studies: A case study examining different life stages of the pacific horned frog (Ceratophrys stolzmanni). Amphibia-Reptilia, 42 (1), 17 - 28. doi:10.1163/15685381-bja10025
The use of individual phenotypic features as non-invasive marks through photo-identification (photo-ID) has many advantages for individual-based field studies. However, since error rates vary betwe...
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Székely, D., Gaona, F. P., Székely, P., & Cogălniceanu, D. (2019). What does a Pacman eat? Macrophagy and necrophagy in a generalist predator (Ceratophrys stolzmanni). PeerJ, 2019 (2), 6406. doi:10.7717/peerj.6406
We describe for the first time the feeding ecology of the Pacific horned frog (Ceratophrys stolzmanni), as inferred through gastrointestinal tract content analysis and behavioural observations in i...
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Urgiles, V. L., Székely, P., Székely, D., Christodoulides, N., Sanchez-Nivicela, J. C., & Savage, A. E. (2019). Genetic delimitation of pristimantis orestes (lynch, 1979) and p. saturninoi brito et al., 2017 and description of two new terrestrial frogs from the pristimantis orestes species group (anura, strabomantidae). ZooKeys, 2019 (864), 111-146. doi:10.3897/zookeys.864.35102
In the genus Pristimantis, species are often combined into taxonomic units called species groups. The taxonomy of these groups is frequently inaccurate due to the absence of genetic data from type ...
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Székely, D., Cogălniceanu, D., Székely, P., & Denoël, M. (August 2018). Dryness affects burrowing depth in a semi-fossorial amphibian. Journal of Arid Environments, 155, 79-81. doi:10.1016/j.jaridenv.2018.02.003
The fossorial life-history emerged as a response to hostile environmental conditions, such as extreme temperatures and dryness. It evolved independently in different lineages of amphibians, which a...
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Székely, D., Székely, P., Denoël, M.* , & Cogălniceanu, D.*. (April 2018). Random size-assortative mating despite size-dependent fecundity in a Neotropical amphibian with explosive reproduction. Ethology, 124 (4), 218-226. doi:10.1111/eth.12724
Sexual selection theory predicts that, when body size is correlated with fecundity, there should be fitness advantages for mate choice of the largest females. Moreover, because larger males are exp...
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Székely, D., Szekely, P., Stanescu, F., Cogalniceanu, D., & Sinsch, U. (15 February 2018). Breed fast, die young: demography of a poorly known fossorial frog from the xeric Neotropics. Salamandra, 54 (1), 37-44.
We successfully used skeletochronology to provide the first detailed demographic data regarding Ceratophrys stolzmanni, a cryptic, fossorial amphibian inhabiting the xeric Neotropics. We observed a...
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Székely, P., Eguiguren, J. S., Székely, D., Ordóñez-Delgado, L., Armijos-Ojeda, D., Riofrío-Guamán, M. L., & Cogălniceanu, D. (2018). A new minute Pristimantis (Amphibia: Anura: Strabomantidae) from the Andes of southern Ecuador. PLoS ONE, 13 (8). doi:10.1371/journal.pone.0202332
We describe a new rainfrog species (Pristimantis), from the wetland complex Oña, Nabón, Saraguro and Yacuambi, in the Andes of southern Ecuador, at altitudes ranging between 3000–3400 m a.s.l. Pris...
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Székely, D., Denoël, M., Székely, P., & Cogalniceanu, D. (October 2017). Pond drying cues and their effects on growth and metamorphosis in a fast developing amphibian. Journal of Zoology, 303 (2), 129-135. doi:10.1111/jzo.12468
The hydroperiod of breeding habitats imposes a strong selection on amphibians and pond-breeding species usually exhibit a high degree of plasticity in the duration of larval period. However, the po...
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Székely, D., Székely, P., Stănescu, F., Cogălniceanu, D., & Sinsch, U. (19 September 2017). Breed fast, die young - Demography of a Neotropical fossorial frog [Poster presentation]. 19th European Congress of Herpetology, Salzburg, Austria.
Information regarding age- and size-related parameters is of paramount importance both to understanding the life-history of populations, and for designing effective conservation strategies; however...
Székely, D., Cogalniceanu, D., Székely, P., & Denoël, M. (April 2017). Out of the ground: two coexisting fossorial toad species differ in their emergence and movement patterns. Zoology, 121, 49-55. doi:10.1016/j.zool.2016.12.003
Understanding the way species with similar niches can coexist is a challenge in ecology.The niche partitioning hypothesis has received much support, positing that species can exploit available reso...
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Székely, D., Szekely, P., Denoël, M., & Cogalniceanu, D. (06 October 2016). Phenotypic plasticity in a fossorial toad from a Pacific xeric forest (Ecuador) [Poster presentation]. XIV Congreso Luso-Español de Herpetología, Lleida, Spain.
For amphibians, optimal size at metamorphosis is determined by a trade-off between opportunities for growth and risks of mortality in aquatic and terrestrial habitats, and many species show a high ...
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Székely, D., Székely, P., Denoël, M., & Cogalniceanu, D. (29 September 2016). Who are the winners in the race against desiccation – phenotypic plasticity in a fossorial toad [Poster presentation]. I Congreso Argentino-Paraguayo de Herpetologia, Posadas, Paraguay.
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Székely, D., Stanescu, F., Székely, P., Denoël, M., & Cogalniceanu, D. (September 2015). Behavioral effects of exposure to salinity on tadpoles of two syntopic species of spadefoot toads (genus Pelobates) [Poster presentation]. 18th European Congress of Herpetology (SEH 2015), Wroclaw, Poland.
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Székely, D., Szekely, P., & Cogalniceanu, D. (2015). PELOBATES SYRIACUS (Syrian Spadefoot). CANNIBALISM. Herpetological Review, 46 (1), 76-77.
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Stanescu, F., Iosif, R., Székely, D., Szekely, P., Rosioru, D., & Cogalniceanu, D. (31 August 2013). SALINITY TOLERANCE IN PELOBATES FUSCUS (LAURENTI, 1768) TADPOLES (AMPHIBIA: PELOBATIDAE). Travaux du Muséum National d'Histoire Naturelle, 56 (1), 103-108. doi:10.2478/travmu-2013-0008
We investigated the effect of salinity on larval development and survival rate to metamorphosis in the common spadefoot toad Pelobates fuscus (Laurenti, 1768). Our hypothesis was that higher salin...
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Székely, D., Denoël, M., Székely, P., & Cogalniceanu, D. (25 August 2013). Differences in locomotor activity in two syntopic spadefoot toad species (genus Pelobates) [Poster presentation]. 17th European Congress of Herpetology (SEH - Societas Europaea Herpetologica), Veszprém, Hungary.
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